Six-wheel truck.



H. E. DOERR.

SIX WHEEL TRUCK.

APPLICATION FILED JULY 29, 1912.

1,46, 1 55,- Patented Dec. 3, 1912 2 SHEETSSHEET 1.

W y/Ww wa 1- H. E. DOBRR. SIX WHEEL TRUCK.

APPLICATION FILED JULY 28,1912.

@atented Dec. 3, 191.2.

,Trucks, o't whieh the following; is a full,

particularly to six-wheel trucks of the type integrally connected together and are pret- Ev casta-netalsixqvheel car truck in which the .holster-su nor-tine, s rin "s are carried bv caste truck. of the type referred to that combearing guiding members integrally eon- ,nected to the transonis and to inwardly proeoting brackets on the wheel-pieces.

view of a sixwvheel ear-truck constructed in.

tending parallel to the transonis 2, as shown UNLEED ETAEFLQE PATlnildit DOERR, OF ST; LOUIS, IVIISSOURI. ASSIGBTOR TD CUitLIN-GALLAGI"IER- I301; {MID-STEEL COMPANY, OF ST. LOUIS IVIISSOUEI, A. CURPOEATION OF LIiSSOURII SIX-WHEEL TEUGK;

Specification of Letters Patent. Pat-@1335} Egg 3, $5212 Application filed July 29, 1912. Serial No. 712,086.

T0011 whom. it may 0022mm: l jetting; outwardly, as shown in lie it known that l. llARRY-E. Donnn z t the oedestals l3 nreterablv consist i .7 1 J i citizen'ot' the United States, residing at St. :ers that are detat-lialjl w eonncmted in the Louis, Missouri, have invented certain l \vheel-pieees l. 'l he springs C, which are new. and u ul Improvement. in Six-ll heel i interposed between the wheel-pieces and the equalizers D, fit in spring seats or pockets -.i-; on the under sides of the wheel-pieees l. and the transonis v-ihich connect the wheelpieces together are preferably arrar ged about midwa} heiwcen the tlllkhWQ of the double holster E and the wt if, as shown in Fig. 1. 'llw transoios approxinxatel channel-shaped in cross lion. as hown in Fig. 53. and i bottom flanges thereof are integral nected to the horizontal langes oi? pieces the vertical wet of the 1 being also integrally eminent-3d at Ll ends to the v rtical wehs oi the, wheelpieces The end ineinhers 3 which extend parallel to the transmits are also channelprises roller devices which provide for the shaped in cross section and are dipped down.- lateral movement of the bolster And still \i'ardly intermediate their ends so that the another ohjectds to provide a strong, servmiddle portions of saute lie in a lower horiicealole and inexpensive six-wheel car truck zontal plane than the n'l e' iieces as shown that is equipped with a double bolster whose in Fig. 2. Longitiulhnill posed hraeos ends'project beyond the Wheel-pieces so as are preferably arranged hetween the trim to support the side hearing carrying menu soin and end nieiu at each end of the hers, and combined spring seats and roller truck, as shown in Fl l as to produce a strong and rigid "frame, 1 aces 5 tending parallel to the NllHELDltCGL- a short distance inward l v from tl wheels. (E ther objects and desirable features of my The holster 3) is a do holster and so invention will he'hereinatter pointed out. prif a suhstantiall 3 vet Figure 1 of the drawings is a top plan tion wln ends c extensions (3 that extend clear, and exact description, such will enable others skilled in the art to which it appertains to make; and use the same.

'l-his invention relates to car trucks, and

injivhich the wheel-pieces and transoins are erahlvtornred from a one-piece castinglit? f ()ne object of my invention is to provide a spring seats. connected to the wheel-pieces and ;to thcftransonis.

Another ob ect is to provide a six-Wheel accordance with'my invention; Fig. 2 is a side elevational'viewot said truck partly in yond same, as shmvn in vertical section taken on the line 22 of hearings 7 being" carried lJ-vt Fig. 1; Fig. a vertical cross sectional view oisaidtruck taken on the line 3-3 otF-ig. 1; and Fig. 4. a horizontal seetiohal vieiv ta'lten on the line4-i or: Fig.

Referring tothe drawings which illustrate the preferred form of my invention, A desig-nates'a"one-piece casting comprising a pair of'Wheel-pieces 1,'tw0 single transoins 2 that connect sa-id- Wheel-pieces together, and; end members 3 integrally connected to the end portions of the wheel-pieces and eX- arranged outside of the wh shown in Fig. .l, and CC'DlHYd U' orally projecting extensions The end portitms oi the lie adjacent the wheeltor the holster, and are provided. plates 9 that cooperate with wear pm: on the holster.

The bolster-is supported by four (in springs G which rest on four s irin seats that are integrally Connected to the end portions of the transoins i3 to inwardly projecting brackets 10 on the \VhGGl'PlGCQS 1. each oi said spring seats comprising a hori-- zontally disposed portion 11 on which its on inl i'gJL' The wheel-pieces 1 are prefer ably channel-shaped ni'cross section and are arranged with theirhorlzontal flanges prooperating springs G rest, and two vertically disposed side portions 12, one of which is integrally connected at its .upper end to the end portion of the transom 2 and the other to the integral bracket 10 on the wheel pieces, as shown clearly in Figs. 2 and 3. loller bearing devices comprising rollers 18 and roller seat members 13* are arranged between the bolster E and the springs G so as to provide for the lateral motion of the bolster, and the vertically disposed portions 1:2 of the spring seats are provided on their inner faces with vertically disposed ribs 12* that fit between laterally projecting lugs 13 on the roller seat members 13 and thus guide said members and hold them in position. Any suitable type of springs and roller devices may be used for supporting the bolster, and any suitable type of double bolster can be used, the one herein shown belng provided on its under side with 111- a decided improvement on the six-whce1 car trucks now in general use in which the bolster is carried by spring planks supported by means of links from the main portion of,

the frame of the truck. By eliminating the spring planks and the hangers which support same Ireduce the weight of the truck and also reduce the cost of manufacture without impairing the etliciency of-the truck because the roller devices that are interposed between the bolster and the springs that support the'bolster motion of the bolster.

As previously stated, I prefer to cast the seats or supporting devices for thesprings G integral with the transoms 2 and with the wheel-pieces but this it not absol tely cssen-' tial to the successful operation of my truck as said spring seats could be combined with or connected to the main portion of the frame of the truck in various other ways without departing from the spirit of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A six-wheel car truck having a frame that comprises wheel-pieces, 'transoms' integrally connected to said wheel-pieces, a double bolster arranged between said tranprovide for the lateral soms and having portions that project laterally beyond the wheel-pieces, spring seats:

connected to the transoms, bolster-supportring springs carried by said spring seats, and

nected together, stationary spring seats forming part of said frame, a double bolster arranged between the transoms, bolster-sup porting springs on said spring seats, and roller, devices interposed between said springs and bolster.

t 4. A six-wheel car truck having a frame which comprises wheel-pieces, transolns and transverse end members all integrally connected together, stationary spring seats forming part of said frame, a double bolster arranged between the transoms, bolster-supporting springs on said spring seats, roller devices interposed between said springs and bolster, the bolster having portions that project laterally beyond the wheel-pieces, and members connected to the laterally project ing portions of the bolster for supporting the side bearings. 5. A six-wheel car truck provided with a cast metal frame that comprises transoms, wheel-pieces and brackets that project inwardly from the wheel pieces, and stationary spring seats connected to said brackets and transoms.

6. A six-wheel car truck having a castmetal frame that comprises transoms, wheelpieces and brackets that-pro'ect inwardly from the wheel-pieces, and su stantially U- shaped spring seats integrally connected to said transoms and brackets so as to carry bolster-snpporting springs. i

7. A six-wheel car truck having a cast metal frame that comprises transoms, wheelpieces and brackets'that project inwardlljy from the wheel-pieces, substantially shaped spring seats integrally connected to vsaid transoms and brackets so as to carry bolster-supporting springs, tranverse and members integrally connected to the wheelpieces, and longitudinal braces arranged between the, wheel-pieces and connected to theend member frame.

8. A six-wheel car truck having a cast metal frame that comprises transoms, wheclpieces and brackets that project inwardly from the wheel-pieces, substantially U shaped spring seats integrally connected to and transom at each end ofthe nee les Wardly intermediate theqwheel-pieces and said longitudinal braces being inclined downwardly from the transoms.

9. A six-wheel car truck frame comprising Wheel-pieces, end members and transoms all integrally connected together, and stationary spring seats for bolster-supporting springs carried by said transoms and Wheel pieces.

10. A six-Wheel car truck frame consisting of an integral casting constructed to receive-a double bolster, and four substantially U-shaped spring seats integrally connected to and depending from said frame.

.11. A six-wheel car truck frame comprising wheel-pieces and transoms integrally coi'mccted together, and four substantially Ushaped spring seats depending from the frame and integrally connected to the Wheelpieces and transoms.

12. A six-Wheel car truck provided'with a cast metal frame that comprises wheelpieces, transverse end members and tran-' sonis integrally connected together, a double bolster arranged Between the transoms and provided with laterally projecting portions that extend downwardly under the Wheelpieces, depending spring seat connected to the wheel-pieces and to the transoms, bolster-supporting springs mounted on said seats, roller devices comprising rollers and roller seats arranged between the bolstersupporting springs and the latera ly projecting. portions on the bolster, and means on said depending spring seats for guiding said roller seats.

In testimony whereof I hereunto aflix my signature in the presence or two Witnesses, this twenty-fourth day of July, 1912.

HARRY E. DOERR.

W'itnesses GEORGE BAKEWELL, Lnnonn WILSON. 

